Trying to understand the benefits and downside of a lot of grass/submerged vegetation. The pond was lined when it was built but covered in dirt and that was probably over a decade ago.

I'm so new to this so I'm just trying to see what to do. Water is well water and Im in the process of getting it tested. Water is fairly clear in the shallow edges but I honestly don't know what I should expect visibility wise. It gets deep fairly fast and the bottom seems covered thick in some sort of different vegetation. I'll try to take some pics of it to identify it, I was looking though the tamu list of plants and still haven't figured out what it is. Sorry for some newbie questions, just got a lot going through this shallow head. Going to add some cedar trees soon, but wanted to see if I should clear out this grass, for all I know it could be the best thing going for the pond, lol

Thanks again for the help and your patience